Ash-conveyer



J. M. HOPWOOD.

ASH CONVEYER.

APPLICATION FILED JUNE ll, 19l7. RENEWED JAN. 29,1920.

1 3 5 1 572 Patented Aug. 31, 1920.

WITNESSES I W iT/ENTOR UNITED STA TES JoHN M. HOPWOOD, or PITTSBURGH, PENNSYLVANIA, nssr'enoaj ro 'rsn :HAGAN' CORPORATION, or PITTSBURGH, PENNSYLVANIA, A'ooR TmN-QF19 m.

SYLVANIA.

7 Application filed June 11, 1917, Serial No. 174,0 ??5.

To all whom it may concern: I r

. Be it known that/I, JOHN M. Horwoon, residing at Pittsburgh, in the county of legheny and State of Pennsylvania,-a citizen of the United States, have invented or discovered certain new and useful Improvements in Ash-Conveyors, of which improve-f ient the following is a specification.

The inventiondescribed herein relates to that class or type of ash conveyors employing jets of steam for shifting the ashes from the points where they are charged into a conduit, toa receptacle or place of storage.

It is the usual practice when ashes are to be flowing into the conduits, resulting in an unnecessary use of steam.

The object ofthe present invention is to provide for the cutting off of thesteam jets after the ashes have been removed from.

. each of the ash-pits, and to this end thisin-.

vention consists in means operative by the plug when shifted from the openings into the conduit, for admitting steam to the nozzle or nozzles in the conduit and auto matically operating means to shut off the steam when the. plug is replaced. The invention is hereinafter more fully described and claimed.

In the'accompanying drawings forming a part of this specification, Figure '1 is an asn oonvnrnn.

v Speoification'of Letters Patent. PfltsBIitQQi 31,

n newed" January 29, 1920. serial no; 354,872! r the manifold-pipe 5 which is connected to the steam supply pipe 6 provided with the controllingyalve 7. The operating arm 8 of this valve is connected to the rod 9iof i i I plston 10 in the cylinder :11. *lVhen relieved;

from the fluid pressure ashereinafter described, the piston is moved up byfa spring 1.2 to so'shift the valve Tas to permit of the flow of steam throughthe nozzles." A pipe- 18 extending from a boiler or other source of fluid, pressure,is connected to "the upper portion'of the cylinder and isprovided with a series of controlling valves 14 arranged respectively in convenient proximity to the openings into the'c'onduit. These valves are of the three-way type and when in normalfposition permit fluid under pres sure to flow to the cylinder and'hold the 7 piston down, compressing the spring and closing the valve 7. When the valves 14 are i turned as hereinafter described, .the flowof fluid to the cylinder is checked and the fluid under prcssurein the cylinder and the portions of the pipe intermediate the cylin der and the valve which has beenshifted, is allowed to escape, I thus permitting ,the

.so i

. spring to act, raising the piston landthereby opening the valve 7 Thefvalves l' t are held innormal position by .springs'l5 connected to the valve operat-' ing handles 16. To theseha'ndles are connected rods 17 which are provided-with suitable means permitting of the ready attachelevation of an ash conveying plant em bodying my improvement; Fig. 2 is a'similar view of a portion of a plant embodying a modification of the controlling devices, and Figs. 3 and 4 are a plan and elevation respectively, illustrating further modifications of the improvement.

In the practice of the invention, the con duit 1 is of the usual or anysuitable form and is provided with openings'having suitable removable covers or plugs 52 in front of each furnace of the plant; nozzles 3 and 4t are arranged to direct jets of steam into'the conduit at suitable points, as for example, into the lower end of the vertical portion 1 and into the horizontal portion 1 These nozzles have their outer ends connected to ment of theplugs or covers 2 thereto, and

-thereby cause a shifting of the valve-14; and

the consequent opening of the valve 7 The springs 15 are made of such a strength rel.- ative' to weight of the plugs, as to yield when the plugs are-connected to the valve handles.

easy attachment and removal of the plug, no

'It is preferred that the rod and plug'should 5 other object of sufficient weight to turn the valves can be attached to the rods 17, thereby rendering it necessary :to employ the plugs to open the valves, and as the replacement of the plugs is necessary for the proper operation of the furnaces,'a-nd as such re-v placement of the plugs involves their re moval .from the rod 17 and the consequent automatic shifting of the valves 14;, the cutting off of the steam jets is insured.

As shown in 2, a solenoid 20 may, be

I valve z, 'Thelevers 22are' provided with employed-inlieu of thefluid pressure motor movable plungei' oi the solenoid connected In such construction the 'arinatu're or to the valveoperating rod 9. The'circuit of the solenoid is formed in sections adapted to be connectedby blocks21 carriedby levers 22 and adapted when free, to move down and close the circuit thereby closing the means similar to those hereinbei'ore de- 1 scribed-wherebythe plugsor covers QJinay are, being scraped into the'conduitf be connected to the levers whileithe ashes:

Iii'the construction shown in Figs. 3 and l, the plug or covcr'2 is plOVlLlGClWltll an arm ZSwhichis secured to ashaft 24 mountcd in suitable bearings and to this sh'aftis ,secured an arm 25 connected by a rod 17 to thehai dle or operating-arm of the valve 145. This construction insures theproper shiftingot the 'valves n the pipe 13 and the consequent operationofthe-inotor controlling valve 1 It will beuiiderstood that the term or motor 1s used generically herein to 111- clude'nie'chanismadapted to shift the valve 1 whether to open orclosed position or both. I claim herein asmy nvention 1. In* an ash" conveying apparatus the "combination of an o'pen'cnded conduit having 'a plurality of spaced openings therein,

' a'plurality for removable plugs for said openings, a nozzle for directing a ct of fluid undeix pressure intoi said-conduit to estab-J 'li'sh acurrent of air therethrough, a valve controlling the flow of fluid to said nozzle,

' means for openiiig'said valve, a plurality of ineansshift'ableiby' the said plugs o't-the respective openings for: controlling the valve operating means.

ings, anozzl e for directing a jet 0 2, In an ash conveying apparatus, the con'ibinat-ioii of an .open'ended COliClUlitllLV- flurality ot re novable plugs for said openi iluid under pressure into saicl'coiid ii t ion 7 lisl'ung a current 01' air"therethi'ough, a valve controllingthe' flow of fluid to said nozzle, means adapted to returnand hold said valve in closed position, and'a plurality e'j' neans operative by the respectiveiplugs ior moving the valve to open position.

8. In an ash conveying apparatus the combination of an open ended conduit having a plurality of'spaced openings therein, a' plurality of removable plugs -1o r said openings, a nozzle for directing a et of fluid inder pressurein'to said conduit whereby estab ing a plurality'ol spaced openings therein, a v

" LQ In an ash conveying 'apparatusthe combination of an open endcd'con duit hav- "111g a plural ty of spaced openings tl1610111,a

plurality of pivotally "mounted "plugs for said openings, a nozzle for directing ajet of fluid into the conduit whereby toejstablish a current of air through'the conduit, a valve controlling theflow of flu d under pressure through thenozzle, amotor for shifting said valve and a pluralitycf mechanisms opera tive by the respective plugs for" controlling the operations of the motor. 7 1 i In testimony whereof I have hereunto set 

